Ziggy Stardust, complete with six-pack, in honour of the singer's 66th birthday earlier this month

The digital product manager tries to coincide her creations with current events and wears costumes to the office, when they are "work-appropriate". She dressed up as an iPhone when she had to present a speech on the future of mobile.

Saba in Kiss mode, above left and as Gwyneth Paltrow's Margot Tenenbaum of The Royal Tenenbaums

Are you a fancy dress fan? Let us know what you think of Mary Helen Saba's Herculean outfit challenge on Twitter or in the comments section below.